{
 "slug": "heltec-mesh-node-t114",
 "name": "Heltec Mesh Node T114 Rev. 2.0",
 "maker": "Heltec",
 "category": "radio",
 "categoryLabel": "Radio & mesh",
 "status": "listed",
 "statusLabel": "Listed by maker",
 "description": "Assemble a Bluetooth-connected LoRa node with optional display and GPS.",
 "goodFor": "Assemble a Bluetooth-connected LoRa node with optional display and GPS.",
 "youNeed": "Correct regional antenna, power source and Meshtastic client.",
 "tradeoff": "The display, GPS, battery and enclosure are package-dependent.",
 "tags": [
  "mesh",
  "radio",
  "build",
  "meshtastic",
  "lora",
  "ble"
 ],
 "price": "From US$17.90",
 "priceShort": "$17.90+",
 "priceFrom": "heltec.org",
 "checked": "2026-09-15",
 "url": "https://gadgets.sh/devices/heltec-mesh-node-t114/",
 "shortUrl": "https://gadgets.sh/heltec-mesh-node-t114",
 "markdown": "https://gadgets.sh/devices/heltec-mesh-node-t114.md",
 "image": "https://gadgets.sh/assets/heltec-mesh-node-t114.jpg",
 "cutout": "https://gadgets.sh/assets/cutouts/heltec-mesh-node-t114.webp",
 "shareCard": "https://gadgets.sh/og/heltec-mesh-node-t114.jpg",
 "shops": [
  {
   "merchant": "Heltec",
   "label": "Buy from Heltec",
   "kind": "shop",
   "orderable": true,
   "url": "https://heltec.org/project/mesh-node-t114/?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=heltec-mesh-node-t114&utm_content=api",
   "note": "In stock at Heltec when checked on 2026-09-24."
  },
  {
   "merchant": "Amazon",
   "label": "Buy from Amazon",
   "kind": "shop",
   "orderable": true,
   "url": "https://www.amazon.com/dp/B0DDLD3VG8?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=heltec-mesh-node-t114&utm_content=api",
   "note": "In stock at Amazon when checked on 2026-09-24."
  }
 ],
 "specs": [
  {
   "group": "Controller and radio",
   "rows": [
    {
     "label": "Controller",
     "value": "nRF52840; 1 MB program memory and 256 KB SRAM",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "LoRa",
     "value": "SX1262; high-band 863–928 MHz and low-band 470–510 MHz models documented",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "433 MHz selection",
     "value": "Store also lists a 433 MHz option; confirm the selected radio/antenna variant",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Radio performance claims",
     "value": "21 ±1 dBm output; −135 dBm sensitivity at SF12 / 125 kHz",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "Phone radio",
     "value": "Bluetooth LE 5; onboard ceramic antenna",
     "source": "https://heltec.org/project/mesh-node-t114/"
    }
   ]
  },
  {
   "group": "Display, accessories and power",
   "rows": [
    {
     "label": "Display option",
     "value": "1.14-inch TFT, 135 × 240 pixels, up to 262k colors",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "GNSS option",
     "value": "L76K accessory; eight-pin 1.25 mm connection",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Connections",
     "value": "USB-C, LoRa IPEX and two 13-pin 2.54 mm headers",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "Battery input",
     "value": "3–4.2 V lithium; two-pin SH1.25 socket",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "USB and solar",
     "value": "5 V USB; solar range 5–6.5 V, maker recommends about 5 V",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Solar socket",
     "value": "Two-pin SH1.25",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Maker current examples",
     "value": "11 µA deep sleep; 22 µA tracker sleep; 9/20/51 mA for GPS/display off, display on, both on",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Board size",
     "value": "50.8 × 22.86 mm",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "Environment",
     "value": "Operating −20 to 70 °C; up to 90% RH non-condensing",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "Case battery space",
     "value": "Maker maximum: 42 × 28 × 11 mm",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Base package",
     "value": "Board, LoRa antenna, two battery connectors and two 13-pin headers",
     "source": "https://heltec.org/project/mesh-node-t114/"
    },
    {
     "label": "Bundle-dependent parts",
     "value": "Display, L76K GNSS, case and antenna adapter vary by selection",
     "source": "https://heltec.org/project/mesh-node-t114/"
    }
   ]
  },
  {
   "group": "Revision and firmware setup",
   "rows": [
    {
     "label": "V2 radio revision",
     "value": "Six-layer redesign addresses long-packet transmission issues on early high-frequency boards",
     "source": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/hardware_update_log"
    },
    {
     "label": "V2.1 power revision",
     "value": "Revises battery reverse-polarity protection and ADC standby circuitry",
     "source": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/hardware_update_log"
    },
    {
     "label": "Upstream Meshtastic target",
     "value": "heltec-mesh-node-t114 at the pinned commit",
     "source": "https://github.com/meshtastic/firmware/blob/6d41e279f1f51bd59f687b9d441c1bf47b1594fc/variants/nrf52840/heltec_mesh_node_t114/platformio.ini"
    },
    {
     "label": "Enter bootloader",
     "value": "Connect USB-C and double-press RST; the HT-n5262 drive appears",
     "source": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/firmware_upload"
    },
    {
     "label": "Firmware upload",
     "value": "Copy the matching UF2 to HT-n5262; the board restarts automatically",
     "source": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/firmware_upload"
    },
    {
     "label": "Development",
     "value": "Heltec nRF52 framework/libraries support Arduino and LoRa/LoRaWAN development",
     "source": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
    },
    {
     "label": "Other software listings",
     "value": "Maker also advertises PlatformIO and MeshCore",
     "source": "https://heltec.org/project/mesh-node-t114/"
    }
   ]
  }
 ],
 "docs": [
  {
   "label": "Maker specifications and documentation",
   "url": "https://heltec.org/project/mesh-node-t114/"
  },
  {
   "label": "Meshtastic supported hardware",
   "url": "https://meshtastic.org/docs/hardware/devices/"
  },
  {
   "label": "Datasheet",
   "url": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf"
  },
  {
   "label": "Schematics and downloads",
   "url": "https://resource.heltec.cn/download/Mesh_Node_T114"
  },
  {
   "label": "Maker report on early-board radio issue",
   "url": "https://github.com/meshtastic/firmware/issues/4723#issuecomment-2404889735"
  },
  {
   "label": "T114 maker setup overview",
   "url": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/"
  },
  {
   "label": "T114 hardware revision history",
   "url": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/hardware_update_log"
  },
  {
   "label": "T114 UF2 upload instructions",
   "url": "https://wiki.heltec.org/docs/devices/open-source-hardware/nrf52840-series/mesh-node-t114/firmware_upload"
  },
  {
   "label": "Pinned Meshtastic T114 build definition",
   "url": "https://github.com/meshtastic/firmware/blob/6d41e279f1f51bd59f687b9d441c1bf47b1594fc/variants/nrf52840/heltec_mesh_node_t114/platformio.ini"
  },
  {
   "label": "Meshtastic firmware selector and web flasher",
   "url": "https://flasher.meshtastic.org/"
  },
  {
   "label": "Official Meshtastic apps and firmware downloads",
   "url": "https://meshtastic.org/downloads/"
  }
 ],
 "blueprint": {
  "openness": "schematics",
  "opennessLabel": "Schematics published",
  "summary": "Heltec publishes a schematic PDF, datasheet, and pin map for the Mesh Node T114; no editable PCB source is published.",
  "files": [
   {
    "kind": "schematic",
    "label": "Mesh Node T114 schematic diagram (PDF)",
    "url": "https://resource.heltec.cn/download/Mesh_Node_T114/schematic_diagram.pdf",
    "format": "PDF"
   },
   {
    "kind": "datasheet",
    "label": "Mesh Node T114 datasheet",
    "url": "https://resource.heltec.cn/download/Mesh_Node_T114/Datasheet.pdf",
    "format": "PDF"
   },
   {
    "kind": "pinout",
    "label": "Mesh Node T114 pin map",
    "url": "https://resource.heltec.cn/download/Mesh_Node_T114/Mesh_node_t114_Pin_Map.png",
    "format": "PNG"
   }
  ],
  "repos": [
   {
    "url": "https://github.com/HelTecAutomation/HeltecWiKi",
    "role": "docs",
    "official": true,
    "license": "GPL-3.0",
    "stars": 11,
    "pushed": "2026-09-26"
   }
  ],
  "parts": [
   {
    "part": "Nordic nRF52840",
    "role": "MCU/BLE radio",
    "datasheet": "https://www.nordicsemi.com/Products/nRF52840"
   },
   {
    "part": "Semtech SX1262",
    "role": "LoRa radio",
    "datasheet": "https://www.semtech.com/products/wireless-rf/lora-connect/sx1262"
   }
  ],
  "notes": "All three files verified live (200) on resource.heltec.cn. Wiki (hardware_update_log) notes a Rev. 2.0 six-layer redesign; the linked schematic/datasheet are the current-revision files Heltec serves at that URL, no separate older-revision PDF was found.",
  "checked": "2026-09-27"
 },
 "sourceFiles": null,
 "firmware": [
  {
   "name": "Meshtastic Firmware for nRF52840",
   "url": "https://github.com/meshtastic/firmware",
   "tag": "Mesh OS",
   "description": "Native Nordic nRF52840 build for Meshtastic, featuring ultra-low sleep current and BLE pairing."
  }
 ],
 "chips": [
  "nrf52840",
  "sx1262",
  "l76k"
 ]
}